[2][page needed] The film is about Giovanna Dei (Monica Carpanese) who is the creator of the comic series Doctor Dark, a character with a split personality.
The version released to home video in Italy differs from the original film market screenings, where it borrows murder scenes from A Blade in the Dark.
[4] Screenplay author Lorenzo De Luca stated the scenario and script were written in one week and that Mattei "left me plenty of room to do what I wanted, as long as the movie did not cost too much and there were not too many characters.
[4] This version also loses scenes where a character finds the murder victims' eyes in an apartment and the epilogue with a coast guard boat approaching a yacht.
[1] Howarth also commented on the slow pacing, cinematography that was "flat and ugly", and actors who "overact like mad or are so wooden that they seem to disappear into the scenery.